title: Ionic liquid crystals as alignment medium to measure residual dipolar couplings for carbohydrates.
abstract: Ionic liquids consisting of N-dodecyl-N-methyl pyrrolidinium bromide [C12MPB] in a mixture with D2O, decanol, and DMSO were for the first time found to give anisotropic molecular alignment in magnetic fields and are useful to measure residual dipolar couplings (RDCs) from polar analytes, for example, glucose. The system shows less quadrupolar splitting of the deuterated solvent signal compared with other liquid crystal systems and hence less undesired line broadening.
authors.affiliation: Institute of Analytical Chemistry, University Leipzig, Leipzig, Germany.
authors.forename: Murali
authors.initials: M
authors.lastname: Dama
authors.forename: Stefan
authors.initials: S
authors.lastname: Berger
mesh_terms: D016880:Anisotropy; D004121:Dimethyl Sulfoxide / Q000737:chemistry; D005233:Fatty Alcohols / Q000737:chemistry; D005947:Glucose / Q000737:chemistry; D052578:Ionic Liquids / Q000737:chemistry*; D050866:Liquid Crystals / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D011759:Pyrrolidines / Q000737:chemistry*
chemical_list: D005233:Fatty Alcohols; D052578:Ionic Liquids; D011759:Pyrrolidines; C029383:n-decyl alcohol; D005947:Glucose; D004121:Dimethyl Sulfoxide
keywords: Glucose; Ionic liquid crystals; NMR; Residual dipolar coupling